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TreeSetExample.java
Output
https://www.youtube.com/watch?v=i5F8E8mXNyw&list=UUhwKlOVR041tngjerWxVccw
TreeSetExample.java
import java.util.NavigableSet; import java.util.TreeSet; /* * Example of descendingSet() method. */ public class TreeSetExample { public static void main( String[] args ) { TreeSet<Integer> treeSet = new TreeSet<Integer>(); treeSet.add(40); treeSet.add(20); treeSet.add(30); treeSet.add(10); treeSet.add(50); System.out.println("treeSet : " + treeSet + "\n"); /* * Returns a reverse order view of the elements contained in this set. * The descending set is backed by this set, so changes to the set are * reflected in the descending set, and vice-versa. * * If either set is modified while an iteration over either set is in * progress (except through the iterator's own remove operation), the * results of the iteration are undefined. */ NavigableSet<Integer> navigableSet = treeSet.descendingSet(); System.out.println("navigableSet : " + navigableSet + "\n"); for( Integer value : navigableSet ) { System.out.println(value); } } }
treeSet : [10, 20, 30, 40, 50] navigableSet : [50, 40, 30, 20, 10] 50 40 30 20 10
https://sites.google.com/site/javaee4321/java-collections/TreeSetDemoDescendingSet.zip?attredirects=0&d=1
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